Oil control



R. M. HARNE.

OIL CONTROL.

APPLICATION FILED MAR. 6,1922.

Patented Oct. 31, 1922.

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OIL CONTROL.

APPLICATION FILED MAR. 6. 1922.

1,483,613. Patented Oct-31,1922;

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ROY M. HARNE, or cnnsron, IOWA.

OIL CONTROL.

Application filed March 6, 1922. Serial No. 541,621.

To an whom it may coacem:

Be it known that I, ROY M. HARNE, a citizen of the United States,residing at Creston, in the county of Union and State of Iowa, haveinvented certain new and useful Improvements in Oil Controls, of whichthe following is a specification.

This invention relates to oil controls for internal combustion engines,and it comprises a reservoir, afloat chamber,- adapted to be arrangedin. the crank case of an enresult, it is customary to supply more oilvengine, a'float arranged in said float chamber, and a cut-off valvecontrolled by said floatwhereby .a definite level of oil in-the crankcase may be maintained at all times.

In lubricating internal combustion engines, it is the usual practice tosupply oil to the crank case andthen feed the oil, by force feed systemsor splash system to the bearings to be lubricated. It is necessary tomaintain the oil level above a certain low limit to prevent burnt ,outbearings and similar trouble, and in order to obtaintliis than is neededwhen the oil is replenished. in order that sufiicient oil may be presentat all times until the oil is again replenished.

' This tends to provide an excess of oil at times which is detrimentalto the running of the. engine as it causes fouling of the plugs,deposition of carbon, and similar troubles. I g In the presentinvention, I provide means for automatically feeding the, oil from areservoir arranged outside of the crank case whereby a definite oillevel mav be maintained at all times. I

The flow of oil is controlled by a float arranged in a float chamber andthis float chamber is disposed substantially centrally of the enginebase to provide a proper level at all times regardless of theinclination of the'surface on which the vehicle is travelmg I In thepresent invention, I further provides. valve mechanism controlled by thefloat consisting of a double cut-01f valve whereby, the flow of oil isefl'ectuallv stopped when suflicient oil has flowed into the crank case.

In the accompanying drawings, I have shown one embodiment of theinvention. In this showing:

Figure 1 is a transverse vertical sectional View showing the inventionapplied.

.stem when the float raises and lowers.

Figure 2 is a .detailview of the float line 6-6 of Figure 5, and,

Figure 7 is a similar'view on line 77 of Fi ure 5.

Re erring to the drawings, the reference numeral 1 designates generallythe crank case of an internal combustion engine. A float chamber 2 isarranged in the crank case substantially centrally thereof. The bottomof the float chamber is provided with openings 3 communicating with theinterior of the crank case to maintain a level of oil in the floatchamber equal to the level in the crank case. A float 4 is arranged inthe float chamber and this float is attached to a tubular valve member5. The bottom of the float chamber is provided with an opening having apipe 6 surrounding it, formving a neck or guide for the tubular mempipe8. The pipe 6 is provided with a pair of openings'9, which are adaptedto register with similar openings 10 in the sleeve valve to permit flowof oil from the pipe 8 to the interior of the crank case (see F igures 2and 7 A valve stem 11 is arranged within the tubular valve member 5 andthis stem is provided with a pin 12 which is adapted'to engage the upperend of the tubular valve member to move the valve The. lower end of thisstem is provided with a valve 13, adapted to engage the lower end ofpipe 6, to cut off the flow ofoil.

. The pipe 8 is connected to a reservoir: 14, arranged at-any suitablepoint'on the vehicle and preferably disposed at a higher level than thelevel of the crank case. As shown, a cut off valve 15 may be arranged inthe pipe 8. The pipe extends into the reservoir at a point above thebottom, being provided with a horizontal portion 16 and dependingvertical portion 17, which terminates near the bottom of the reservoir.The lower end of the vertical portion 17 may be provided with a suitablescreen or filter 18." The reservoir is provided with a filling opening19, having a suitable screen or filler 20, arranged therein. Thisopeningis normally closed by cap 21. The lower end of the reservoir is providedwith a drain opening 22. The pressure tube 23 may be arranged in thereservoir and this tube may extend to the instrumental board or otherconvenient location on the vehicle and be.

connected to a suitable gage to determine the level of oil therein.

In operation, the reservoir 14 is filled, or partially filled, with oil.When the level of oil in the crank case is' below the desired limit, thefloat is in the full line position shown in Figure 5 of the drawings,with the valve 18 open and the openings 9 and 10 registering with eachother. At this time, oil will flow into the crank case. As the oil levelrises, the float is raised to the dotted line position, bringing theopenings 9 and 10 out of alinement and thus cutting off the flow of oilto the crank case. As the float continues to rise, the valve stem 11 islifted through the medium of pin 12, closing the valve 13.

- By arranging the float chamber in the center of the crank case,transversely of the en gine, the device functions properly, regardlessof the position of the vehicle. Where the float chamber is arranged atone side of the crank case, if the vehicle is on uneven ground, the oillevel at the side is either raised or lowered out ofproportion to theproper level of oil in the'crank case and either too much oil isobtained or the flow cut off at a time when more oil is needed.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the same,and thatvarious changes in the shape, size, and arrangement'of parts may beresorted to without 'departingfrom the spirit of'the invention or thescope of the subjoined claims. c

Having thus described my invention, I claim:

1. An oil feeding device comprising a reservoir, a float chamber adaptedto be arranged in the crank case of an internal combustion engine, afloat arranged in saidfloat ,of the engine, a sleeve valve connected tosaid float, extending into said pipe and normally covering said opening,and an auxiliary valve arranged in said pipe and controlled by saidfloat.

2. An oil feeding device comprising a.

reservoir, a float chamber adapted to be arranged in the crank case ofan internal combustion engine, a feed pipe connecting said reservoir andsaid float chamber, said feed pipe being provided with openings adjacentsaid float chamber communicating with the crank case of the engine, afloat arranged in said float chamber, a sleeve valve connected to saidfloat andextending into said feed pipe, said sleeve valve being providedwith openings adapted'to be moved into and out of registration with theopenings in said pipe by the movement of said float, a cutoif valvearranged in said pipe, and a valve stem secured to said cut-off valveand extending through said sleeve valve. I

3. An oil feeding device comprising a reservoir, a float chamber adaptedto be arranged, in the crank case of an internal combustion engine, afloat arranged in said float chamber, a feed pipe connected with saidreservoir, said pipe being provided with an enlargement within the crankcase of the engine and adjacent said float chamber, a neck connectingsaid enlargement with said chamher, said neck being provided with anopening communicating with the interior of the,

. crank case, a sleeve valve connected with said float and slidable insaid neck to control the passage of fluid through the opening therein,

a valve arranged in said enlargement, and

means connected between said valve and said ROY M. HARNE.

Witnesses W. A. HENDERSON, L. E. HARRELL.

